West Nile Virus (WNV)

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Vaccination, WNV, and Colic Fact Sheets Available

January 06, 2010

TheHorse.com is getting 2010 off to a great start with three more Fact Sheets on topics that are important to our readers. The new fact sheets cover vaccinations for your horse, West Nile virus, and equine colic. ... Read More

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West Nile Virus Risk Factors Identified

December 23, 2009

A variety of environmental factors might be related to West Nile virus infections in horses, reported a Florida research team lead by Leslie M.V. Rios, PhD, from the Department of Entomology and Nematology at the University of Florida in Gainesville.... Read More

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New Equine Education Courtesy of Intervet/Schering-Plough and TheHorse.com

December 02, 2009

Horse owners looking for up-to-date information on parasites and drug resistance can find two new videos on TheHorse.com containing presentations made in Kentucky to a group of veterinarians, vet techs, and horse owners. These are sponsored b... Read More

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New West Nile Virus Vaccines for Horses Approved

November 23, 2009

New equine West Nile virus vaccines have been approved by the USDA. The vaccine line, called Vetera, is manufactured by Boehringer-Ingelheim, a privately held pharmaceutical company.

The Vetera line of West Nile virus vaccines... Read More

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Seventh Kentucky West Nile Virus Case Confirmed

October 15, 2009

The Kentucky State Veterinarian's office today noted that a seventh 2009 case of West Nile virus (WNV) has been confirmed.

An 18-month-old Quarter horse filly in ballard County had an onset of clinical signs of ataxia, lethargy, and... Read More

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Kentucky West Nile Virus Update: Sixth Case Confirmed

October 10, 2009

This morning (Oct. 10), the Kentucky State Veterinarian's office sent out an alert that the sixth equine case of West Nile virus had been confirmed.

The University of Kentucky's Livestock Disease Diagnostic Center confirmed the diagnosis... Read More

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West Nile Virus Returns to Italy

October 03, 2009

West Nile virus (WNV) has re-emerged in Italy, resulting in 28 equine clinical cases, including seven deaths as of last week, according to an epidemiological bulletin produced by the Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molis... Read More

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EEE and West Nile Virus Cases Continue to Climb

September 12, 2009

A total of 203 cases of Eastern equine encephalitis (EEE) has been reported in the United States this year according to the USDA's National Animal Health... Read More

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Mosquito-Borne Horse Diseases Update

September 06, 2009

Many equine health professionals are worried that because of the economic recession that's lasted more than a year, many horses are either not vaccinated or are under-vaccinated to protect them agasint common diseases.

According to the... Read More

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Virginia Logs First Equine WNV Case for 2009

September 05, 2009

The Virginia Department of Agriculture and Consumer Services (VDACS) has confirmed and announced Virginia's first positive case of West Nile virus (WNV) in a horse for 2009. The 16-year-old Tennessee Walking Horse mare was from Pittsylvania... Read More

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Mosquito-Borne Equine Diseases Prevalent on Both Coasts

September 03, 2009

As of Aug. 25, Florida led the United States in the number of documented equine cases of Eastern equine encephalitis (EEE), a mosquito-borne disease with mortality rates of around 90% in horses. Washington state officials had confirmed the most... Read More

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West Nile Virus: Washington Reports Highest Number of Cases

August 24, 2009

West Nile virus cases are popping up across the country, with Washington state reporting the highest number of equine cases.

As of Aug. 19, Washington animal health authorities had reported 12 equine cases. Other states reporting cases... Read More

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Japanese Encephalitis Vaccine Might Offer Some WNV Protection

August 18, 2009

Vaccination against Japanese encephalitis might mitigate West Nile virus (WNV) infection in some horses, said a group of researchers from Japan's National Institute of Animal Health... Read More

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West Nile Virus: 35 States Active, First Reported 2009 Horse Death in California

August 07, 2009

When West Nile virus (WNV) made its march from East Coast to West Coast starting in late 1999, California was one of the last states to be struck by the disease. In the past couple of years, California has one of the the highest rates... Read More

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West Nile Virus-Positive Mosquito Pool in 2009 Confirmed in Maryland

August 06, 2009

The Maryland Department of Agriculture (MDA) announces the first state detection of a West Nile virus (WNV) mosquito pool in Maryland in 2009. State Department of Health and Mental Hygiene (DHMH) laboratory results confirmed the presence of WNV in... Read More

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First 2009 Equine West Nile Virus Case Confirmed in Kentucky

August 05, 2009

Laboratory results received Tuesday (Aug. 4) from Murray State University's Breathitt Veterinary Center confirms the diagnosis of West Nile virus (WNV) having affected a yearling colt in Caldwell County, Kentucky. This is according to the... Read More

Video

WNV Reality Check!

July 30, 2009

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Poll: West Nile Virus Vaccine Choices

July 11, 2009

Almost 480 readers of TheHorse.com responded to a poll asking, "Do you know which WNV vaccine your veterinarian uses on your horse(s)?"

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Mosquito Control Measures: Poll Results

July 02, 2009

About 980 readers of TheHorse.com responded to a poll asking, "What mosquito control measures do you utilize?"... Read More

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West Nile Virus is Still a Threat, TheHorse.com Readers Say

June 28, 2009

More than 890 readers of TheHorse.com responded to a poll asking, "Do you believe West Nile is still a threat to your horse(s)?"

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Foal Immune Responses after WNV Vaccination, AAEP 2008

June 21, 2009

Vaccinating 5-month-old foals with a single dose of West Nile virus chimeric vaccine in the presence of maternal antibodies to West Nile virus does induce a cell-mediated response (in the foal). ... Read More

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Poll: Majority of TheHorse.com Readers Vaccinate Against WNV

June 19, 2009

More than 1,270 readers of TheHorse.com responded to a poll asking, "Do you vaccinate for West Nile virus annually?"

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Readers Share Top Two Vaccination Choices

June 12, 2009

Approximately 1,270 readers of TheHorse.com responded to a poll asking, "Which two vaccinations do you feel are most important?"

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Building Immunity

May 01, 2009

The foal’s immune system is almost a blank slate at birth; researchers are figuring out how to best protect horses as they grow.

The process of building immunity against disease-causing pathogens for a horse begins with a... Read More

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Washington State Vet Urges WNV Vaccination

April 22, 2009

Horse owners in Washington should take advantage of the vaccines available to prevent West Nile virus, particularly as the state led the... Read More